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Makefile
(105 B)
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linux.h
(14.87 KB)
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linux32_dummy_machdep.c
(2.69 KB)
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linux32_genassym.c
(651 B)
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linux32_locore.asm
(3.77 KB)
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linux32_machdep.c
(18.74 KB)
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linux32_proto.h
(118.31 KB)
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linux32_support.s
(4.81 KB)
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linux32_syscall.h
(14.88 KB)
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linux32_syscalls.c
(19.87 KB)
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linux32_sysent.c
(71.57 KB)
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linux32_systrace_args.c
(161.67 KB)
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linux32_sysvec.c
(31.03 KB)
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linux32_vdso.lds.s
(1.29 KB)
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syscalls.conf
(296 B)
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syscalls.master
(40.42 KB)
Editing: linux32_support.s
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2007 Konstantin Belousov * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include "linux32_assym.h" /* system definitions */ #include <machine/asmacros.h> /* miscellaneous asm macros */ #include <machine/specialreg.h> #include "assym.inc" futex_fault: testl $CPUID_STDEXT_SMAP,cpu_stdext_feature(%rip) je 1f clac 1: movq $0,PCB_ONFAULT(%r8) movl $-EFAULT,%eax ret ENTRY(futex_xchgl_nosmap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault xchgl %edi,(%rsi) movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_xchgl_nosmap) ENTRY(futex_xchgl_smap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault stac xchgl %edi,(%rsi) clac movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_xchgl_smap) ENTRY(futex_addl_nosmap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault #ifdef SMP lock #endif xaddl %edi,(%rsi) movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_addl_nosmap) ENTRY(futex_addl_smap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault stac #ifdef SMP lock #endif xaddl %edi,(%rsi) clac movl %edi,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_addl_smap) ENTRY(futex_orl_nosmap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault movl (%rsi),%eax 1: movl %eax,%ecx orl %edi,%ecx #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) jnz 1b movl %eax,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_orl_nosmap) ENTRY(futex_orl_smap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault movl (%rsi),%eax 1: movl %eax,%ecx orl %edi,%ecx stac #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) clac jnz 1b movl %eax,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_orl_smap) ENTRY(futex_andl_nosmap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault movl (%rsi),%eax 1: movl %eax,%ecx andl %edi,%ecx #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) jnz 1b movl %eax,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_andl_nosmap) ENTRY(futex_andl_smap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault movl (%rsi),%eax 1: movl %eax,%ecx andl %edi,%ecx stac #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) clac jnz 1b movl %eax,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_andl_smap) ENTRY(futex_xorl_nosmap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault movl (%rsi),%eax 1: movl %eax,%ecx xorl %edi,%ecx #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) jnz 1b movl %eax,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_xorl_nosmap) ENTRY(futex_xorl_smap) movq PCPU(CURPCB),%r8 movq $futex_fault,PCB_ONFAULT(%r8) movq $VM_MAXUSER_ADDRESS-4,%rax cmpq %rax,%rsi ja futex_fault movl (%rsi),%eax 1: movl %eax,%ecx xorl %edi,%ecx stac #ifdef SMP lock #endif cmpxchgl %ecx,(%rsi) clac jnz 1b movl %eax,(%rdx) xorl %eax,%eax movq %rax,PCB_ONFAULT(%r8) ret END(futex_xorl_smap)
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